JPS6241722B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a Western umbrella, and relates to a Western umbrella whose main ribs expand when the umbrella is opened to increase the intended function of the umbrella, and which are made more compact by contracting when the umbrella is closed.

Traditionally, various types of Western umbrellas have been provided.For example, there are already umbrellas with telescopic middle rods that extend when the umbrella is opened, but contract when the umbrella is closed. Proposed. In the case of this type of Western umbrella, when the umbrella is closed, the umbrella becomes compact and convenient to carry, but only the middle rod expands and contracts, and when the umbrella is opened, the unfolded diameter of the umbrella cloth made up of the framework expands. Therefore, the intended function of the umbrella (rain protection function) is not improved. Regarding this point, for example, Jitsugan No. 49-7000 (Jitsugan 45-7000)
52601), the lower potter's wheel and the leading rib are connected and supported by a support bone, the upper potter's wheel and the said support bone are pivotally connected by a middle rib, and the base end of the leading rib is connected to the upper potter's wheel. The frame structure is indirectly connected and supported, and the length of the frame in the open state is longer than the length of the frame in the closed state. Therefore, in this Western umbrella, the unfolded diameter of the umbrella cloth is enlarged when the umbrella is opened, and the intended function of the umbrella can be increased. However, since this Western umbrella has a structure in which the leading rib is indirectly connected and supported to the upper potter's wheel as described above, the shape of the umbrella cloth when the umbrella is opened does not have a beautiful appearance, and the frame structure is complicated.
Moreover, this method is limited to folding type Western umbrellas, and therefore, there is a problem in that the work of folding the umbrella cloth at the same time as folding is extremely complicated.

In addition, as a device that made it possible to expand the unfolded diameter of the umbrella cloth in the open state, for example,
The one described in the -1964 publication is publicly known. This conventional Western umbrella consists of a rib that is pivoted to the upper potter's wheel and a slide bone that is slidably held on the groove bone, and the base of the slide bone is pivoted to the support bone.
The middle part of the perpendicular bone and the groove bone were connected by a bending link, and a stopper was provided at the tip of the groove bone to prevent the sliding bone from falling out.

Western umbrellas with the above structure use a stopper to prevent the groove bones and slide bones from falling off when the umbrella is opened, and the stopper is easily subjected to impact force when the umbrella is opened, and even in strong winds, the stopper is not exposed to excessive force. It was easy to apply force, and the stopper easily fell off.

That is, in this conventional western umbrella, the bending link does not function in any way to maintain the umbrella in the open state, but only functions to pull up the sliding rib during the closing operation, which poses a problem in terms of strength.

Further, in the above-mentioned Western umbrella, the base of the slide rib cannot be approached close to the upper potter's wheel when the umbrella is closed, so the appearance of the umbrella cloth when the umbrella is closed is not beautiful.

Therefore, the present invention has a high strength frame structure,
To provide a Western umbrella that can withstand a large force when opened and whose umbrella cloth has a beautiful appearance when closed. In order to achieve such an object, the present invention is characterized by having a master rib that is fixed to the center rod and pivoted to an upper potter's wheel, and a support bone that is pivoted to a lower potter's wheel that can be raised and lowered to the center rod. In a Western umbrella having a frame structure in which the end of the support rib is pivotally connected to the middle part of the main rib: the main rib is composed of a first main rib and a second main rib that are overlapped with each other so as to be able to expand and contract with each other, The proximal end of the first main rib is pivoted to the upper potter's wheel, the tip of the first main rib and the middle part of the support bone are connected by one interlocking bone, and the middle part of the second main rib is connected to the end of the support bone. and has a holder at the proximal end of the second rib, an umbrella cloth is attached to the holder, and a space between the attachment part and the upper potter's wheel is configured as a margin of the umbrella cloth. That's what I did.

The present invention will be described in detail below with reference to the illustrated embodiments. As shown in FIG. 1 showing a closed umbrella state and FIG. 2 showing an open umbrella state, the present invention is preferably an automatic opening umbrella called a jump umbrella. will be implemented. The Western umbrella consists of a main rib 3 which is fixed to the middle rod 1 and pivoted to the upper potter's wheel 2, and a support bone 5 which is pivoted to the lower potter's wheel 4 which can be raised and lowered to the middle rod 1.
It has a frame structure in which the end of the support rib 5 is pivotally connected to the midway part of the main rib 3.

The middle rod 1 is composed of a first middle rod 1a on the base end side which is telescopically telescopic and a second middle rod 1b slidably inserted into the first middle rod 1a,
A compression spring 6 is interposed between spring receivers 6a and 6b fixed to the first center rod 1a and the second center rod 1b, respectively. The second middle bar 1b has an upper potter's wheel 2 fixed to its upper end, and a cap 7 is fixed above the upper potter's wheel, and a middle bar fixing repellent 8 is installed inside the second middle bar 1b. ing. A cushion spring 9 is wound around the second center rod 1b below the upper wheel. On the other hand, the first middle rod 1a has a proximal end 10 at its base end.
is fixed, and the first center rod 1 is positioned near the hand 10.
A jump repellent 11 is installed inside a. This repellent 11 is for locking the lower potter's wheel 4, and is equipped with a button 12, and a locking claw 13 can freely come out and retract from a slit in the first center rod 1a. The middle rod fixing repellent 8 is made to be able to freely come out and retract from the circumferential surface of the second middle rod 1b, and when the compression spring 6 is compressed and the second middle rod 1b is inserted into the first middle rod 1a. A locking slit 14 that receives and locks the claw piece 8a of the repellent 8, and a locking slit that similarly receives and locks the claw piece 8a when the second middle rod 1b is extended from the first middle rod 1a by the compression spring 6. A stop slit 15 is formed in each of the first inner rods 1a.

The lower wheel 4 consists of a first lower wheel 4a and a second lower wheel 4b, and the support bone 5 is pivotally attached to the first lower wheel 4a. The second lower potter's wheel 4b is the first
Located under the lower wheel 4a, the body 16 of the first lower wheel 4a is connected to the cylindrical portion 17 of the second lower wheel 4b.
Insert the first lower potter's wheel 4a and the second lower potter's wheel 4
A jump spring 18 is interposed and compressed between b.
The second lower potter's wheel 4b has a slit 19 for receiving and locking the locking claw 13 of the jump reel, and the second lower potter's wheel 4b has a connecting bone 20 pivotally attached thereto. This connecting bone 20 is pivotally connected to the supporting bone 5 at its end.

The main rib 3 is composed of a first main rib 3a and a second main rib 3b which are superimposed on each other so as to be able to expand and contract with each other.
The proximal end of the main rib 3a is pivotally connected to the upper potter's wheel 2, while the pivot piece 21 is fixed to the middle part of the second main rib 3b.
The end of the support bone 5 is pivotally connected to the support frame 5. In the illustrated embodiment, the first main rib 3a and the second main rib 3b are telescopically slidable, and as shown in the third figure, the second main rib 3b has a holder 22 at the end, while the first main rib 3b
a is configured to be slidable between the inner surface of the holder 22 and the base end 3c of the second rib 3b, and
A sliding tool 23 is provided at the tip of the first rib 3a and is slidable on the outer surface of the second rib 3b. Therefore, the first
The master rib 3a and the midway part of the support bone 5 are connected by an interlocking bone 24, one end of which is pivotally connected to a pivot piece 25 located midway through the support bone 5, and the other end of the interlocking bone 24 connected to the first end.
It is pivotally connected to the pivot piece 26 of the sliding tool 23 of the main rib 3a.

The umbrella cloth 27 is held between the upper potter's wheel 2 and the cap 7, and the thread 28 is attached to the holder 22 of the second rib 3b.
The pivot piece 2 of the second rib 3b is fixed via the
It is fixed to the second rib 3b on the distal end side of the second rib 3b with a conventionally known thread 29 or the like. At this time, the umbrella cloth 27 is connected to the fixed thread 28 and the upper potter's wheel 2 in the closed state (FIG. 1).
It has an allowance section 30 located between.

To explain the operation of the western umbrella according to the above embodiment, in the closed umbrella state shown in the first figure, the first middle rod 1a compresses the compression spring 6 and is inserted into the second middle rod 1b, and the middle rod fixed repellent 8 is inserted into the second middle rod 1b. The inner rod 1 is fixed by the claw pieces 8a, so that the inner rod 1 is in a contracted state. The lower wheel 4 is lowered with respect to the middle rod 1, and the jump repellent 11 is inserted into the slit 19 of the second lower wheel 4b.
The locking claw 13 is locked. Further, the first lower potter's wheel 4a compresses the jump spring 18. Main bone 3
and the supporting bone 5 are folded so as to overlap.

To open the umbrella from this state, push the button 12 of the jump repellent 11. When the second lower potter's wheel 4b is disengaged from the jump repellent 11, the first lower potter's wheel 4a and the second lower potter's wheel 4b, which are connected by the support bone 5 and the connecting bone 20, are moved by the action of the jump spring 18. By moving in the direction of separation, the lower potter's wheel 4 rises along the middle rod 1, and the supporting ribs 5 push up the main rib 3 to automatically open the umbrella. At this time, the first lower potter's wheel 4a collides with the cushion spring 9, and the impact is alleviated (FIG. 2). During this automatic umbrella opening, when the first lower potter's wheel 4a passes through the middle rod fixing repellent 8 while rising, its claw piece 8a is pushed inward through the locking slit 14 of the first middle rod 1a. Therefore, as a result, the fixed state between the first middle rod 1a and the second middle rod 1b is released, the first middle rod 1a is expanded by the compression spring 6, and after the extension, the middle rod fixed repellent 8
The claw piece 8a is locked in the locking slit 15 to fix the extended state (FIG. 2).

Due to this opening, the main rib 3 is expanded as shown in FIGS. 4 to 6. That is, FIG. 4 shows the framework in the closed state, FIG. 5 shows the framework in the halfway opened state, and FIG. 6 shows the framework in the open state. When the umbrella is opened, the angle of the support bone 5 with respect to the center rod 1 changes from an acute angle to an angle close to a right angle, and accordingly, the interlocking bone 24 is opened and the sliding tool 23 of the first main rib 3a pivotally attached to the interlocking bone 24 is moved. The second rib 3b, which is pivotally attached to the support bone 5, is pulled toward the tip of the rib. Therefore, the second rib 3b is extended by sliding the proximal end 3c along the first rib 3a and its sliding tool 23. As the main rib 3 expands, the holder 22 of the second main rib 3b to which the umbrella cloth 27 is fixed also moves to the first main rib 3b.
It slides on the rib 3a and moves toward the tip of the rib, thereby stretching the margin 30 of the umbrella cloth. Therefore, the overall length L of the main rib 3 is the length La in the closed state in FIG. 4, and the length Lb in the open state in FIG. 6.
It is assumed that La<Lb.

On the other hand, in order to close the umbrella again, the second lower potter's wheel 4b is grasped and lowered along the middle rod 1. Second
When the lower potter's wheel 4b passes through the middle rod fixed repellent 8, it pushes in the claw piece 8a of the reel and releases the engagement with the slit 15, so that the first center rod 1a passes through the second center rod 1b.
The claw piece 8 is inserted and contracted inside against the compression spring 6.
When a is engaged with the other slit 14, the middle rod 1 is fixed in the contracted state. As the lower wheel 4 descends, the angle of the supporting bone 5 with respect to the middle rod 1 becomes an acute angle, and as a result of the overlapping of the supporting bone 5 and the connecting bone 20, the first lower wheel 4a resists the jump spring 18 and moves to the second
It is inserted into the cylindrical part 17 of the lower potter's wheel 4b,
The locking claw 13 of the jump repellent 11 engages with the slit 19 of the second lower wheel 4b to fix the lower wheel 4 in the lowered state. Contrary to the above, the skeleton is the 6th
As shown in FIG. 4, the second rib 3b slides in the proximal direction of the first rib 3a to contract the rib 3. At this time, the holder 22 of the second rib 3b slides on the first rib 3a and lifts the margin 30 of the umbrella cloth 27 above the upper potter's wheel 2 (FIG. 1). It is preferable to form a crease in advance in this margin portion 30, and the crease allows the margin portion 30 to
It is possible to lift it up in an orderly manner.

As a result of the present invention configured as described above, the main rib 3 is expandable and retractable, and the second main rib 3 is moved by the interlocking rib 24.
b is formed so that it automatically extends from the closed state to the open state relative to the first rib 3a.
The unfolded diameter of the umbrella cloth 27 can be expanded when the umbrella is opened, which is excellent for increasing the intended function of the umbrella. Furthermore, when the umbrella is closed, the main rib 3 is automatically retracted by the interlocking rib 24, making it compact and convenient to carry. Since the main rib 3 can be contracted in accordance with the rod 1, the appearance in the folded state can also be made neat.

Further, according to the present invention, without fundamentally changing the frame structure of a conventional Western umbrella, the main rib 3 is divided into the first main rib 3a and the second main rib 3b which are mutually extendable and slidable, and the interlocking rib 24 is It can be implemented with a simple structure of simply installing the structure, and actual production is easier than in the case of creating a complicated frame structure. Furthermore, as described above, the entire umbrella cloth 27 from the upper potter's wheel 2 to the outer periphery of the cloth is supported by the main rib 3, so that the shape when the umbrella is opened is beautiful, and as in the above embodiment, the umbrella cloth 27 has a beautiful shape. By configuring the margin portion 30 to be lifted up, the work of folding the umbrella cloth when closing the umbrella is facilitated,
To make the appearance of an umbrella cloth in a closed state beautiful.

In addition, since the end of the first rib and the middle part of the support bone are connected by one interlocking bone, this interlocking bone prevents the second rib from falling off when the umbrella is opened, and when the umbrella is opened, Since the movement of the second rib is prevented, the strength is excellent, and the effect is extremely remarkable.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing a western umbrella according to an embodiment of the present invention in a closed state, FIG. 2 is a longitudinal cross-sectional view showing the umbrella in an open state, and FIG. 3 is an exploded perspective view of the main parts of the umbrella. 4 to 6 are side views sequentially showing the movement of the bones from the closed state to the open state. 1... Middle rod, 2... Upper potter's wheel, 3... Main rib, 3a... First outer rib, 3b... Second outer rib, 4... Lower potter's wheel, 5... Spine, 22... Holder, 23... Sliding tool, 24... Interlocking Bone, 27...umbrella cloth, 28...thread, 30...extra portion.

Claims (1)

[Claims] 1 The main rib is fixed to the center rod and pivoted to the upper potter's wheel,
In a Western umbrella with a frame structure, which has a support bone pivoted to a lower potter's wheel that can be raised and lowered to a central rod, and an end of the support bone is pivoted to a midway part of the main bone; Consisting of a first rib and a second rib that are slidably superposed, the proximal end of the first rib is pivotally connected to the upper potter's wheel,
The tip of the first main rib and the middle part of the above-mentioned support bone are connected by one interlocking bone, the middle part of the second main bone is pivotally connected to the end of the above-mentioned support bone, and the proximal end of the second main bone is 1. A Western umbrella, comprising: a holder; an umbrella cloth is attached to the holder; and a space between the attachment part and the upper potter's wheel is formed as a margin of the umbrella cloth.